A weight of a watermelon is 20kg having 96% water. Due to evaporation the percentage of water becomes 95%. Its reduced weight will be :

16 kg 16.5 kg 17 kg 18 kg

16 kg

(In the process of evaporation, pulp Qty always remains same.) In old qty pulp is = 4% and in new qty pulp is = 5% Therefore, Old Qty × 4% = New Qty × 5% 20kg × 4% = New Qty × 5% 20 × 4 = New Qty × 5 New Qty. = 16 kg